The medical examiner said Ryeley Beatty, 3, died Sunday at Children's Hospital of Pittsburgh of UPMC, where she was flown after being injured in the accident Friday morning. Brooklyn Beatty, 2, was pronounced dead after being taken to Heritage Valley Beaver medical center on Friday.

The girls' parents returned to the home Monday night to find dozens of supporters, and pictures of their daughters on the fence outside their house.

"They were the greatest little girls in the world. Strong, stubborn. And I loved them," said the girls' father, David Beatty. "They're watching over me and their mother, and their brothers and sister."

Coroner Teri Tatalovich-Rossi ruled the deaths an accident and said the cause of death in both cases was asphyxiation due to compression of the chest.

Police have removed the dresser that fell on the girls from the house on Irwin Street in Aliquippa.

“I have grandkids around this age, so it hits home,” said event organizer Ursula Riggins. “We want them to know that they’re not alone. We support them by all means, and we will continue to support them after today.”

During the vigil, the sisters’ greatgrandfather shared pictures of the girls and called them his “light,” while a pastor led family and friends in a prayer.

So far, nearly $5,000 has been raised to assist the family with medical bills and funeral expenses.

"It just makes me shrivel up inside," neighbor Iris Curenton said. "I wouldn't be able to go through it. I would be in the hospital somewhere if it was one of my children."

"They were just over my house the other day with my great-nephew. They was all having fun. They always tease me -- you know, 'Mr. Joe, how you doing,' and everything. Very bright kids. Love them," neighbor Joseph Sheppard said.

The girls' father said he hopes all parents learn from the tragedy, and secure furniture in their own homes that could tip over and hurt children.

"You don't know how fast it can happen," David Beatty said. "Do what you have to do. It can happen in a split second. Accidents can happen so damn fast, and you have no clue what's going to come."

Investigators will be looking into what happened, including whether the weight of the toddlers climbing on open drawers may have triggered it tipping over.